Brake-shoe.



W. G L. TOTTEN.

BRAKE SHOE.

APPLICATION FILED 00114, 1916.

Emma Nov, 6, 1917.

WILLIAM G. L. TOTTEN, 0F BUCKHANNUN, WEST VERGINEA...

BRAKE-SHOE.

- Specification of Letters Eatent.

Patented Nov 6 Appliceitien filed October 14, 1918. Serial No. 125,617.

Shoes, of which the following is a specification.

This invention relates to brake shoes and it consists in the novelfeatures hereinafter described and claimed.

An object of the invention is to provide a brake shoe of simple anddurable structureadopted to be applied to the driving wheels of alocomotive or the wheels of a car truck the shoe being of such astructure as to frictionally engage the wheels and also to trictionallyengage the track rail whereby the wheel is prevented from slipping uponthe rail when the brake shoe is applied, thus protectin the tire of thewheel against wear.

With tnis object in view the invention includes in combination with ablock having a groove disposed transversely across its .lge a brake shoeof at length sufiicientto extend from the said block to the track railwhen the brake is applied. The shoe is provided with a rib which fits inthe said groove and is provided with flange at its upper end whichengages the upper end of the said block. The shoe is provided at itslower portion and at its opposite sides with lugs adapted to receive thetrack rail between them. whereby the lower portion of the shoe is heldin proper position with relation to the rail'when the shoe is applied tothe periphery ot' the-,wheeL In the accompanying drawing:

Figure 1 is a side elevation. of the brake shoe showing the same appliedto a block and its relative position with rela ion to a wheel and trackrail.

Fig. 9 is a vertical sectional view through the brake-shoe.

Fig. 3 is an under plan view of an end portion ofthe shoe.

Fig. is a transverse sectional view through the track rail out on theline 4.4 of Fig 2, v

As illustrated in the accompanying drawing the block 1 is provided atits rear, side with a transversely disposed groove 2, and

the said block is attached to a brake link 3' and beam 4: in the usualmenner.

The broke shoe 5 is provided at its upper forward portion with s rib 6which fits snugly in the groove 2 and the said shoe is provided at itsupper end with a flange 7 which engages over the upper end of theblock 1. A bolt 8 passes transversely through the shoe and theintermediate por- Lion of the block 1 and serves as a means for holdingthe said shoe in position upon the block. The shoe 5 is of a lengthsiulicient to extend from the block 1 to the track rail 9 when the shoeis applied to the periphery of the wheel 10. The shoe 5 is provided atits lower end and at its opposite edges with lugs ll which are adaptedto receive the head of the track rail between them who the shoe isapplied to'the periphery of the wheel 10. The lug ll at the inner sideof the track rail 9 is a little shorter than the lug 11 at the outerside thus providing sulflicient space or room for receiving the flangeof the wheel 10.

When the block 1 is moved so that the shoe 5 is applied to the peripheryoi the wheel 10, the said shoe frictionally engages the wheel and thelower portion of the s we ext-ends under the wheel and bears tjficetly'against the upper surface of the head of the track rail'9 whereby thesaid wheel is lifted from the track rail and the shoe is interposedbetween the wheel and track rail. During this movement of the shoe, thelugs 11 direct the lower portion of the shoe under the wheels andprevent the shoe from mov ing ltiterally from between the wheel and.track rail. Con, equently it will be seen that when the shoe is applied,the wheel is lifted from the rail and the shoe frictionally engages therail thus relieving the tire of the wheel froi'n wear a nd preventingthe same from becon'iing' flattened as is the case in usual constructionwhen brake shoe is applied to the wheel with suilicient force to bringthe wheel to a state of rest while it slides along the track rail.

Having described the invention What is claimed is:- a

1. in combination with a block having a, transversely disposed groove, abrake shoe having a rib adapted. to be received by the groove andprovided'with a flange adapted to engage over the end of the block, saidshoe being of a length sufficient to extend from the block to the traei:rail when the shoe is applied the shoe being provided at its lowerportion and at opposite sides with spaced lugs.

v 2. In combination with at block having a transversely disposed groove,a brake shoe portion and at its opposite si des with lugs having 21 ribadapted to enter the groove adapted to he at the opposite sides of theand provided with a flange adapted to enhead of the track mil, the lugat the inner 19 gage over the end of the block, the shoe heside of therail being shorter than the lug ing of a length sufhoieni to extend fromthe at the outer side. block to the track rail when. the shoe is 2119-in testimony whereof I affiX my signature. plied, the shoe being p'oviderl at its lower WILLIAM G. L. TOTTEN.

